Concrete tile machine



G. LIDSEEN CONCRETE TILE MACHINE Oct. 27; 1925.

2 Sheets-Sheet 1 F1106 June 2. '1923 v EliTltdT'! gave,

Patented Oct. 27, 1925.

UNITEDSTATES GUSTAVE LIDSEE'N, or CHICAGO, rumors,

PATENT,orncaf AssIeNon ro-oolvonnrn rILn MACHINERY COMPANY, or CICERO, ILLINOIS, A CORPORATION or ILLINOIS.

CONCRETE TILE IvIAcHIN-E.

Application filed .Tune 2,

To all whom it may concern.-

Be it known that I, GUs'rAvE LIDSEEN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Concrete Tile Machines, of which the following is a specification.

This invention relates to improvements in concrete tile machines and has for its object to provide a machine of that character in which new and improved means is provided for tamping and compacting, as well as forming the concrete tile from the aggreate.

0 Another object resides in the action and regulation of motion of the tamping member.

These and otherobj ects will be more fully set forth and described in the following specification and shown'in the accompanying drawings, in which Figure 1 is a plan view of my improved tamping device in assembled relation in a concrete tile machine;

Fig. 2 is a side elevation of the same, a portion ofthe mounting being broken away for clearness;

Fig. 3 is a vertical longitudinal section along the line 3-3 of Fig. 1;

Fig. 4; is a plan view of the tamper alone; and

Fig. 5 is a front elevation of the same.

Like numerals refer to like elements throughout the drawings. 10 and 11 indicate side frame members of a concrete tile machine. Only so much of the general mechanism is shown as to enable those skilled in the art to understand the process and function of the t amp-member. 12 indicates generally a charging hopper open at the bottom and supplied with aggregate or concrete by chute 13, located thereabove. Endless chains 1a are provided and actuated, these chains being provided with cross strips 15 between which extend, and upon which are supported the pallets 16 of desired contour. Partitions or separating plates 17 space the pallets and divide the tile during the formation thereof. Pallets are conveyed through charging hopper 12 in the direction indicated by the arrows in Fig. 3,-duringlwhich travel they are charged or loaded with age 1923. Serial No. 642,948.

gregate, the height of this load being regulated by the position of the adjustable slide or gate 18, at the rear of the hopper 12, j

this being the exit point of the pallets. Lo-

cated rearwardly of the hopper 12 in the di:

shown in dotted lines in Fig. 4, for example,

the portions 20 at the ends. of such'bor'e being of relatively lesser diameter and preferablymachined or fitted to form a true smooth surface for the coacting shaft described below. By coring out the intervening or enlarged portion of the bore 20, I reduce the frictional contactsurface be tween the shaft, later described, and the block 20 Secured to the upperjface of face plate 20, adjacent the rear end there of, is the small channel member 2O having its web 20 secured by spot welding or the like, to such face plate. Between the walls 20 of the channel 20 extends the pin or bolt 20 upon which is rotatably carried the roller 20 At each side of the faceplate 20 adjacent the rear end thereof. is a small angle 2O having a. flange likewise secured by spot welding, or the like, to the face plate, and an upwardly extending flange provided with an aperture 20 therethro-ugh for a purpose to be hereinafter described. At therear endlof the hopper 112 are the supporting brackets 12 secured to the side frames 10 and 11 as shown in Figs. 1 and 2';

for p e, by removable bolts 12. Bolted J tothes e brackets 12 are the bearing. blocks 25 secured in position by the bolts 26. These brackets are provided with afliningfl bearing apertures 25, in which, is j'our'na led the shaft 27, one end of; which is extended to carry the sprocket 28, actuated by c'hain 29 in the direction indicated ill 116' QI IO WV in Fig. 2. Shaft 27 is provided with an 6C- centric] portion" 27* being; rotatably mounted in the reduced portions of bore 20. Located rearwardly of the shaft 27 and projecting upwardly from the side frames 10 and 11 are the pedestals 30, secured by bolts 31, or the like, to said .side frames. These pedestals are provided with notched or angularly formed seats 30 at the top thereof, in which is seated the transverse polygonal bar 35. This bar is provided with flattened seats at its exteremities at the upper side thereof. The pedestals 30 are provided with outwardly projecting bosses 30 apertured to accommodate the pins 36, each of which provide a pintle for a locking bail 37 having the locking set screw 38 extending therethrough. These bails 3? may he swung'to overlie the flattend ends of the bar 35 and the locking screws 38 secured downwardly to seat upon. the flattened seats 35 looking the bar 35 securely in seated position. To unlock and permit removal of the bar, this operation is reversed. Suit-able holes are provided in the lower side of the bar 35 overlying flanges 20 of the subjacent tamper, and one end of each of the springs 40, see Fig. 3, is attached in one of these holes, the other end being attached to one of the upstanding flanges 20, these springs being under tension and normally functioning to draw the rear end of the face plate 20 toward the bar 35. When in assembled relation, an inclined cam plate 41 contacts with the roller 20 of the tamper, this contact being maintained by the springs 40, as will be obvious. At its upper side the cam plate 41 is provided with the segmental recess 41 into which extends a lug 42 of transverse plate 42, a pin 41 extending through the lug 42 and serving as a pivot for the cam plate 41 during adjustment of the inclination thereof. This transverse plate 42 is attached by cap screws or the like to a loop 43, which embraces the transverse bar 35, being constructed'to slidingly engage opposed faces thereof, to permit relative movement of the bar and loop parallel to said faces. An adjusting screw 44 is provided, having a reduced portion 44 extending through the bar 35 and secured to the bar by means of a pinned nut 45 at the outer side thereof. The nonreduced portion 44 of the adjusting screw 44 isthreaded for engagement with a coacting threaded aperture in the loop 43, coiled pressed spring 46 extending between the loop 43 and the head 44 of the adjusting screw 44, this spring functioning in well known manner to permit intentional rotation of the adjusting screw but to prevent accidental rotation. At each side of the transverse plate 42 and extending therethrough in threaded engagement therewith is an adjusting screw 47 having an engageable head 47 and its opposite end in contact with the surface of the cam plate 41. Coiled pressed springs 48 extend between plate 42 and the heads 47 of the adjusting screws 47.

By the construction described above the screws 47 may be adjusted to change the inclination of the cam plate 41 at the pivot pin 41 as will be obvious. Likewise adjusting screw 44 may be actuated to slide the loop 43 and simultaneously the'cam plate 41, relative to the bar 35. The roller 20 is held in contact with the face of cam plate 41 by the springs 40.

The front end of the face plate 20 is upturned and grooved, the rear end to a lesser degree being upturned and grooved as shown in Fig. 3, for example. In the operation of this device, as the pallets are charged to the proper height with the aggregate or concrete, during their passage through and out of the hopper 12, they are passed beneath the tamping member 20, which is actuating at a high speed, the front end being moved in a substantially elliptical orbit, due to the eccentric actuating shaft 27. During this actuation of the front portion of the tamper, the movement of the roller 20 and consequently the rear end of the tamper, is regulated by the'cam plate 41, the resultant action being to impart a sufiicient compacting to the concrete to bring it tothe desired density and configuration, and at the same time imparting a rubbing action to the surface, which serves to smooth and at least partially finish the same. It will be obvious also that this motion of the tamper is such that the front end will first engage and compact the subjacent concrete, while this is followed by similar action by the rear portion of the tamper. Also the front portion is first lifted or removed from the concrete so'that instead of boldily lifting the entire face plate 20, there is a relatively gradual withdrawal which will destroy any partial vacuum between the face plate and the concrete. The height of the cam plate 41may be adjusted to accommodate the necessary conditions although this adjustment having once been made, it is unlikely that subsequent adjustment is necessary during the life of any tamper, save possibly to accommodate slight wear. Similarly the angle of inclination of the cam plate 41 may be varied to properly restrain or regulate the motion at the rear end of the tamper and this too generally requiring little or no adjustment after once being properly set up.

hen it is desired to inspect the tamper or underlying mechanism, the bar 35 may be released in the manner described and lifted bodily with the rear end of the tamper 20 through the engagement of springs 40, and the tamper rotated about the shaft 27, or the springs 40 may be disengaged from the tamper or bar to permit such inspection between the concrete and the tamper, necessitating replacement of the tamper after a time. To meet this condition, I have con-, structed my tamping member with a-remov able} and replaceable face plate 20* as clescribed above, which maybe stamped of relatively thinsheet metal .i t a minimum of cost and permitting meto obtain an accurate face. plate at less cost than where the same is constructed of cast iron. Likewise'this ability to replace the face plate without dis turbance oi the carryimblock, is a considerable advantage in cutting down the cost of replacement, as will be obvious.

I do not wish to be restricted to the embodiment of my invention described and shown except as defined in the appended claims.

What I claim is 1. In mechanism of the class described, in combination with material carrying means, a tamping member, said member being eccentrically mounted adjacent one end and arranged for regulated movement vertically and horizontally adjacent the other end.

2. In mechanism of the class described, in combination with material carrying means, a tamping member, said member being eccentrically arranged adjacent one end and.

mounted for regulated movement vertically and horizontally adjacent the other end, and means to adjust the regulated movement.

3. In mechanism of the class described, in combination with material carrying means, a tamping member, eccentric-ally actuated means at one end of said member, and means to guide the other end of said tamper in a movement inclined to the vertical.

4;. In mechanism of the class described, in combination with material carrying means, a tamper member, an eccentric actuating means coacting therewith at one end, and a cam member coacting with the other end to regulate its movement.

5. In mechanism of the class described, in combination with material carrying means, a tamper member, an eccentric actuating means coacting therewith at one end, and a cam member coacting with the other end to regulate its movement, said cam being adjustable to vary said movement.

6. In mechanism of the class described, in

combination with material carrying means,

a tamping member, means to move one end of said tamping member in an elliptical orbit, and means to convert the movement simultaneously imparted to the rear end to a combined vertical and horizontal movement.

7. In mechanism of the class described, in

combination, a tamping member," means to actuate one end thereof, a contact member carried adjacent the other end thereof, and a. cam contracting with said last named member. I

'8'. In mechanism of the class described, in combination, a tamping member, means-to actuateone end thereof, a contact member carried adjacent the other end thereof, and

a cam contacting with sai cl last named member, said cambeing adjustable as to position with respect to saidcontact member, v i

9. In mecl-ianism of the class described,:in combination, a tamping member, means to actuate one end thereof, a contact member carriecladjacent the other end thereofla canr contacting with said last namedmemher, and means to normally maintain said contact member in contact with said cam.

10. In mechanism of the class described,

in combination, a tamping member, means to actuate the same, an overlyingsupporting means, a cam plate carried thereby, said tamping member being provided with means contacting with said cam.

11. In mechanism of the class described, in combination, a tamping member, means to actuate the same, an overlying supporting means, a cam plate carried thereby, said tamping member being provided with means contacting with said cam, said cam plate being adjustable with respect to said tamp ing member,

12. In mechanism of the class described, in combination, a tamping member, means to actuate the same, an overlying supportin means, a cam plate carried thereby, sai tamping member being provided with means contacting with said cam, said cam plate being adjustable with respect to said tamping member, both as to inclination and distance from said tamping member.

13. In mechanism of the class described, in'combinatioma tamping member, means to actuate the same, an overlying supporting means, a cam plate carried thereby, said tamping member being provided with means contacting with said cam, said plate being pivoted, and an adjusting member coacting therewith to adjust the position there-' of about said pivot point.

14. In mechanism of the class described, in combination, a tamping member, means to actuate the same, an overlying supporting means, a cam plate carried thereby, said tamping member being provided with means contacting with said cam, said supporting means being removable to permit swinging of said tamping member about said actuating means.

15. In mechanism of the class described, a tamping member, actuating means therefor operably attached adjacent one end of said tamping member, means to control-the movement of the other end of said tamping -mem ber, said last named means comprising a cam plate, carrying means for said plate, said plate being pivotally attached thereto, and a transverse supporting member, said carrying means being adjnstably attached thereto.

16. Iii-mechanism of the class described,

'a tamping member, actuating means therefor operably attached adjacent one end of said tamping member, means to control the movement of the other end of said tamping member, said last named means comprising a cam plate, carrying means for said plate, said plate being pivotally attached thereto, a transverse supporting member, said carrying means being adjustably attached thereto, and means to bodily adjust the position of said cam plate with respect to said supporting means.

17. In mechanism of the class described, a tamping member, actuating means-therefor operably attached adjacent one end of a transverse supporting member, said carrying means being adjustably attached thereto, and means to adjust the position of said cam plate at its pivotal point.

In testimony whereof, I have subscribed my name.

GUSTAVE LIDSEEN. 

